You really shouldn't be driving to treatment. I never knew how I was going to feel, sometimes I sleep during the hour long ride home, especially towards the end of treatment. Sleeping doesn't make driving easy of pretty. Now that I am receiving bevacizumab, an avastin drug, everyother week, with absolutely no side effects, I still do not go alone. I find a friend to accompany me, even though I drive. I never know what may happen during or after the chemo. My oncologist strongly suggested that I not come to these treatments alone.
Hang in there, it will get better, eventually.